Improved spring for upholstery, chair, car, and other seats



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' To all` whom fit 'may concern.:

E. W. TUCKER, on rLOWE-LL, MICHIGAN.,

Letters Patent N .94,670, dated Sepiemberr', 1869.

IMPRovED SPRING IoR IIEHoLsTERY, CHAIR, CAR, AND OTHER SEATS.

fl'he Schedule referredto in these Letters Patent and mak-ing part of the same.

Be it known that I, E. W. TUCKER, of Lowell, in .the county of Kent, and in the" State of Michigan,

have invented certain new and useful Improvements in Springs for Upholstery, Chan-,and CarScats; and

dohereby declare that the following is a full, clear, and exact description thereof, reference lbeing had to the accompanying drawings, and to theletters of reference marked thereon,l The nature of my invention consists in the construction of a wire spring, which may be used in any kind of a seat, or for uph olstering.

.'In order t0 enable others skilled in the art to which my invention appertains to make and use the same, I will nowproceed to describeits construction and operation, referring to the annexed drawings, which form a' part of this specification', and in which- Eigure lis a vertical section of a seat with my improved spring, and

Figure 2 is a perspective of the spring.

A represents the frame of' the scat, to which the cushion B is secured. 0n top of the frame A, along its sides, are placed round bars C C, around which the ends of g the springs D D are placed saidsprings ex ten'dingacross'` the frame under the cushion, the cushion resting on the springs.

The spring `D is made of wire, twisted at the ends so as to form the loops a'a, and also turned in the centre, so as to form `the. ring l1,-which thus becomes an expandingr joint, allowing? the spring to be depressed.

Infact, the spring D is the lifting-spring, combined with one or more expanding joints, which latter are necessary to make ita perfect-working spring. 

